- All sections
- H - Electricity
- H05B - Electric heating; electric light sources not otherwise provided for; circuit arrangements for electric light sources, in general
- H05B 41/24 - Circuit arrangements in which the lamp is fed by high-frequency ac
Patent holdings for IPC class H05B 41/24
Total number of patents in this class: 443
10-year publication summary
20
|
26
|
18
|
6
|
6
|
6
|
3
|
2
|
3
|
1
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Sharp Kabushiki Kaisha | 18957 |
39 |
Panasonic Electric Works Co., Ltd. | 782 |
28 |
Panasonic Corporation | 20786 |
24 |
Sanken Electric Co., Ltd. | 484 |
20 |
Ushio Denki Kabushiki Kaisha | 1088 |
20 |
Matsushita Electric Industrial Co., Ltd. | 4724 |
15 |
Iwasaki Electric Co., Ltd. | 151 |
13 |
Seiko Epson Corporation | 18724 |
11 |
Mitsubishi Electric Corporation | 43934 |
10 |
Minebea Co., Ltd. | 89 |
10 |
Signify Holding B.V. | 6837 |
10 |
Harison Toshiba Lighting Corp. | 48 |
8 |
Matsushita Electric Works, Ltd. | 229 |
7 |
Koninklijke Philips Electronics N.V. | 13133 |
7 |
Rohm Co., Ltd. | 5843 |
7 |
Murata Manufacturing Co., Ltd. | 22355 |
6 |
ABL IP Holding LLC | 1929 |
6 |
NEC Display Solutions, Ltd. | 822 |
6 |
Sumida Corporation | 291 |
6 |
Delta Electronics, Inc. | 2401 |
5 |
Other owners | 185 |